Clues and Ideas

Articles
Title
2N4988 and 2N4989 (IP058E)
2N4983 and 2N4986 (IP055E)
2N4984 and 2N4985 (IP056E)
Three-Way Switch (IP053E)
Two Wire Control for Two Lamps (IP054E)
Two-Way Switch (IP052E)
Extracting Fuses (IP050E)
Hertz Loop (IP051)
Paper Clip as Alligator Clip (IP049E)

Page 5 of 5

Audio Equalizer (CB10401E)
This circuit was obtained in a 1980 English magazine, but it can be easily assembled today, since...
Precision Shadow Alarm 741 (CB25479E)
This circuit was found in the July 1992 Radio Electronics magazine. Sensitivity adjustment is made...
Pulse Generator (CB5918E)
This circuit makes use of a transconductance operational amplifier. It generates signals with TTL...